Christopher w



(No Model.)

c. W.l LEVALLEY.

HARVESTER.

lPanentedl Aug. 2 ,y 18 81.

I r11/er Ma/.Lag

Y' UNITED, STATES PATENT OFFICE.

.OHRISTOPHERM LEVALLEY, OF ST. PAUL, MINNESOTA, ASSIGNOR TO THE ST. PAUL HARVESTER WORKS, OF SAME PLAGE.

HARVESTER.

SPECIFIATION forming part of Letters latentV No. 245,182, dated August 2, 1881, Application filed May 2.1, 1881. (No model.)

To all whom 'it may concern:

Beit known that I, CHRISTOPHER W. LEVAL- LEY, a citizen of the United States of America, residing at St. Paul,in the county of Ramsey and State of Minnesota, have invented certain new and useful Improvements in Harvesters 5 and I do hereby declare thefoilowing to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanyin g drawings, and to letters or figures of reference marked thereon, which form Aa part of this specification.

tion. Figf2 is a side elevation, partlyin section. Fig. 3 is a front view, the projecting end of a Apitman-'shaft being in section. Figs. 4, 5, 6, and 7 are detached views, showing details of construction; and Fig. 8 is a horizontal secand support lthe secondary shaft or pinionshaft d, which is mounted uponit, and pinion D, adaptedto `mesh with and be driven bythe main drivin g-wheel of a harvester constructed in substantialaccordance with my Patent No. 241,498, dated May ]7, 1881.

The tubular crank-shaftbox or bearing is constructed with a longitudinal slitor throat, 112, and is provided upon one side with a lip, b, projecting from above the slit, anda boltor clamping set-screw, b', which passes through the lip and takes into an ar1n,-O, whichprojcts horizontally from the sleeve below the s it.

n The portion B2 ofthe sleeve is bored out, of such diameter as to lit closely the crank-shaft, the portion B being of greater diameter, and the lining'or bushing is made of such external dia-meter as to lit closely within the larger di- Figure 1 is a plan or top View of so much ofl a harvester as is necessary to show Iny invenameter of the sleeve, and of such internal di- 5o ameter as to tit closely the crank-shaft D3, but is shorter than the part B, whereby, when the parts are in proper Working position, an oilchamber is formed within the sleeve to receive oil through the opening b, the bushing and 55 bushing and replace it at will by simplyremov 6o ing the crank-wheel from that end of the crank- -shaftwhich projects beyond the bushing, and 'withoutthenecessityof withdrawing thecrankshaft from the tubular bearingB.

The pinion-shaft bearing A4 is constructed 65 with a similar slit or throat, (shown in dotted lines at a4, Fig. 2,) the upper part of the bearin g having projecting dan ge a3, through which a bolt or clamping set-screw, a?, passes into ameter `of the bearing A4 is of greater diameter than the shaft 61,' and there is a bushing, g, Fig. 5, inserted'within the bearing, it being of greater length than said bearing, for a pur- Lthe part A2 of the bed-plate. The internal di- 7o pose which will soon be explained. This bush- 7 5 Aing has a slot, g', and an oil-hole, g4, which corresponds in position to the oil-hole afin'the bearing. When preferred, thebearin g A3 may be provided with a similarbushing.'

d3- is a link provided at one 'end with a loop 8o or eye, d4, which surrounds the main axle at I, Fig. 2, and is screw-threaded at its ,opposite end, where it enters a screw-threaded socket in the neck of a head, d2, which has an openthe bushing g which projects beyond the bearin gA4, the relation of the bearing A4, the bushing g,the shaft l, the link and loop I2 13, and the clutch I to each other being clearly shown in Fig. 8.

g2 is a set-screw passing through the head d2 and entering the slot g in the bushing, the position of the set-screw relative to the oilhole g3 being such that when the set-screw is hole g4 will register with the oil-hole a, the link d3 being in position to have the loop d4 surround the axle.

.ing of suiiicient size to slip over that end of 8 5 .in the end (see Fig. 6) of the slot g the oil- 95 f is a sprocket-wheel mounted on a shaft, c, which is mounted in bearings e c', the lower parts of which are cast, by preference, in one piece with the bearing A4.

E is a spur-gear mounted on shaft c and driven by spur-gear E on shaft d.

D2 is a bevel-gear mounted on shaft d and driving a bevel-pinion, d5, on crank-shaft. d is a clutch feathered to shaft d, and sliding thereon to connect the said shaft with pinion D.

C2 is a fork mounted on the end of a spring, C', which is attached to one end of the arm (l by means of bolts c c, the ends of the fork entering a groove in the clutch.

d is a shipping-lever pivoted upon a stud, a., rising from the bed-plate.

D4 is a link connected at one end with the shipping-lever and extending to a point within convenient reach of the driver.

The link d3 is intended to be employed for the purpose of regulating the depth of mesh between the pinion D and its driving-gear, as is explained in my patent above referred to, and the operation of the other parts of the mechanism will be readily understood from an examination of the drawings and the foregoing description, without further explanation.

It will be seen that each of the bushings can be removed from their respective boxes without removing the driving-shafts, which they surround, by simply taking oii' the crank-wheel from the crank-shaft, or by taking ot the pinion D and clutch G2 from shaft d', as the case may be.

It will also be seen that by reason of the setscrew g2 entering the slot g the head d2 is maintained in close contact with the bearing A, irrespective of the position of the sliding clutch G2.

I do not, in this application, claim, broadly, a tubular sleeve or bearing provided upon one side with a slit, whereby the bearing is adapted to be contracted slightly by means of a setscrew or bolt, being aware that such construction is not new with me; but I believe I am the rst to combine with such slitted bearing a removable bushing, whereby certain advantages are secured, it being apparent that the bushing can be readily removed and replaced by a new one whenever its interior surface shall have been worn by the shaft to such an extent as shall make it desirable to thus replace it. Thus all wear upon the inner surface of the tubular bea-ring is avoided.

It is also apparent that some of the advantages may be derived from my invention without the employment of the clamping set-screws or bolts to clamp the upper and lower part of the tubular sleeve upon the bushing, because rotation of the bushing within the sleeve may be prevented by the set-screw g2, which enters the slot g', even though the friction of the outer surface of the bushing upon the inner surface of the sleeve be not suiiicient for that purpose; but under many circumstances such friction will suffice to hold the sleeve in proper position by reason of the elasticity ot' the sleeve. I ordinarily prefer to use clamping set-screws or bolts, in order to facilitate the introduction and removal of the bushing Within the sleeve.

What I claim is- 1. In a harvester, the removable bushing adapted for a shaft-bearing, in combination with a tubular bearin g or sleeve provided with a slit in one side, and means adapted to clamp the bearing upon the bushing, substantially as set forth.

2. In a harvester, the bearing A, provided with a slit, at, in combination with the bushing g, slotted as at g', the set-screw g2, the link d3, and head d2 mounted upon the bushing, substantially as set forth.

3. In a harvester, the combination of the bearingA, slitted upon one side, the clamping screw a, the slotted bushing g, the link d, the head d2, and set-screw g2, substantially as set forth.

4. In a harvester, the hed-plate and the tubular bearing B, cast in one piece and provided with the projecting arm G, in combination with the clutch, the shipping-lever, and the spring C secured to the projecting arm C, substantially as set forth.

In testimonywhereof I affix mysignature in presence of two witnesses.

CHRISTOPHER W. LEVALLEY.

Witnesses:

J. H. RANDALL, E. M. DEANE. 

